Vibrational relaxation in H - collisions

Authors: Flower D.R.1; Roueff E.2

Source: Journal of Physics B: Atomic, Molecular and Optical Physics, Volume 31, Number 23, 1998 , pp. L955-L958(1)

Publisher: Institute of Physics Publishing

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Abstract:

We present the results of quantum mechanical calculations of the rate coefficients for vibrational relaxation of in H in the temperature range . The results were obtained using two recent and independent calculations of the H - potential, for comparison purposes. Although reactive scattering is excluded from the present study, the results of quasi-classical trajectory calculations which include this process are used to estimate its contribution. The total rate coefficient which is thus obtained is found to be an order of magnitude smaller than that measured by Heidner and Kasper, but it is two orders of magnitude larger than the corresponding values for vibrational relaxation in He or . The need for fresh experimental study is emphasized.

Language: English

Document Type: Miscellaneous

Affiliations: 1: Physics Department, The University, Durham DH1 3LE, UK 2: URA 173 (associ?e au CNRS et ? l'Universit? Paris 7) et DAEC Observatoire de Paris, F-92195 Meudon Principal Cedex, France

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